Products Affected

Problem Description

Executing an uptrk command on a BTM/AIT card with revision I.D.B firmware and switch software 8.2.59 and 8.2.58 causes the BTM/AIT card to continuously reset.

The BTM card set consists of the BTM front card and either an AIT-T3 or an AIT-E3 back card. For purposes of troubleshooting, the BTM/AIT card set is considered a trunk. The uptrk command is used to "up" a trunk.

Background

No other BTM/AIT firmware revisions besides I.D.B. are known to exhibit this behavior. This behavior is known to exist in switch software 8.2.58 and 8.2.59. This behavior is known not to exist in switch software revisions 8.4.X and 8.5.X. This behavior is known not to exist in switch software revision 8.2.56 and 8.2.57, and is strongly suspected not to exist in versions earlier than 8.2.56.

If a BTM/AIT card with revision I.D.B firmware is present in a node when the node is upgraded from an earlier version of switch software to either 8.2.58 or 8.2.59, the BTM/AIT card will continuously reset once the upgrade is executed.

If a BTM/AIT card is continuously resetting because of this issue, the immediate solution is to down the trunk (by issuing the dntrk command). Physically removing the card and re-inserting it will not correct the problem.

The interim solution is to downgrade the BTM/AIT card firmware to revision I.D.A. An alternate interim solution is to upgrade switch software to either revision 8.4.X or 8.5.X. BTM/AIT firmware revision I.D.A. can be found on Cisco's corporate FTP site. If you are a registered CCO user, you can login to the corporate FTP site and obtain the firmware by directing your browser to:

If you decide to downgrade the card firmware, those features and bug fixes described in the I.D.B release notes will be lost. The most significant bugs fixed in I.D.B relate to the Complex GateWay (CGW) packets over Cloud Addressing Mode (CAM) addressing mode (Cisco bug ID CSCdj81366 (registered customers only) ) and Round Trip Delay (RTD) value of Foresight connections being set to a maximum (Cisco bug ID CSCdj56425 (registered customers only) ).

The full release notes can also be found on the corporate FTP site in the following location:

The long-term solution is to upgrade the BTM/AIT card firmware to revision I.D.C. This revision of firmware is currently undergoing system level test and regression test. When this firmware becomes available, it will be available on the corporate FTP site in the following location: